20002313 has 2 divisors, whose sum is σ = 20002314. Its totient is φ = 20002312.

The previous prime is 20002261. The next prime is 20002321. The reversal of 20002313 is 31320002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18593344 + 1408969 = 4312^2 + 1187^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002313 - 2¹² = 19998217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002294 and 20002303.

It is not a weakly prime, because it can be changed into another prime (20002363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001156 + 10001157.

It is an arithmetic number, because the mean of its divisors is an integer number (10001157).

Almost surely, 2^20002313 is an apocalyptic number.

It is an amenable number.

20002313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002313 is an equidigital number, since it uses as much as digits as its factorization.

20002313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20002313 is about 4472.3945487848. The cubic root of 20002313 is about 271.4522253360.

Adding to 20002313 its reverse (31320002), we get a palindrome (51322315).

It can be divided in two parts, 20002 and 313, that multiplied together give a palindrome (6260626).

The spelling of 20002313 in words is "twenty million, two thousand, three hundred thirteen".